Cable-carrier apparatus.



G. A. AIVISDEN.

CABLE CARRIER APPARATUS. APPLICATION FILED DEC. 26, 1913.

Patented May 22, 1917.

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G.. A. AIVISDEN. CABLE-CARRIER APPARATUS.

APPLicATIoN FILED 0m26.191s.

1,226,740, Patented May 22,1917.

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To allwho'm vit/may concern:

"NTTE STATES PATE Gf'EORGEA.` AivrsDEN, OE LITTLETON, MASSACHUSETTS, ASsIeNOR To THE LAMSON COMPANY, OE BOSTON, MASSACHUSETTS, A CORPORATION OE NEW JERSEY.

CABLE-CARRIER APPARATUS.

Lescure. f

Be it known` that I, GEORGE State of Massachusetts, rhave invented Oertain new and useful Improvements in Cable` Carrier Apparatus, of which the following is a specification.

This inventionrelates to cable carrier systems in general; the preferred construction hereinafter described exemplifying. the invention as applied to a drop-station in what is knownin the art as a high line cable carrier system; the term drop station being y used in this particular connection inthe.

same sense in which this term is used inthe jointapplication of George A. Amsden and.

Rothesay I. Kidder, entitled Drop-station for cable carrier apparatus and .,thelile, Se-

rial Number 792,888, filed August l, 1913.

`In certain ,of` its aspects the `present invention maybe regarded as an improvement upon the construction disclosed 1n the said joint application.

'A must travel by momentum or gravity, un-.

aided. by the cable, when passing by a station of the character to which the present construction more particularly relates.

e I further aim to avoid unnecessary reverse bending of the cable; or in other words, when'the strands of the cable have been bent by passing over a pulley, one side of the cable at such point is subjected, in effect, tocompression, or at `any rate toreduced tension, while the other side is subjected to a relatively greater tensile edort; and thereafter, while the cableobviously straightens out, as it leaves a pulleyand the stresses upon opposite sides of such portion thereof are then equalized, such4 portion will, as far as practicable, be forced to bend around each succeeding pulley insuch fashion that the side thereof which was subject to said greater tensile effort will" again bethe more remote from the axis of rotation of the pulley upon A. AMSDEN, a citizen ofthe United States, residing at Littleton, in the county of Middlesex and.

Specication of Letters Patent. e Patented Biggy 22 191% Application-med December 26, 1913. Serial N o. 808,713.

which it 'then rides, and will, hence, again be subject to the 'greater stress.

On the other hand, in systemsnow in use, the cable passing down or sidevvise through a drop or other way station is forced to bend rst to one Side thereof as it passes one pulley and then, after being straightened out,

toward the opposite side thereof, which action, although a cable may be quite iiexible,

tends to ultimately cause appreciable wear of thelstrands therein.

. I have further sought to accomplish the above objects while maintaining the number of pulleys ata station at a minimum, to Wit, three.

This and other objects of my invention will be hereinafter referred to and the novel elements and combination of elements whereby said obj ects may be attained will be more particularly set forth in the claims appended hereto.

In the accompanying drawings which form a part hereof and in which like reference characters designate like parts there has been exemplified a cable system dropstation in which are embodied preferred forms of the essential, together with certain relatively non-essential but useful features of the invention; but I am aware of various i changes and modifications which may be made herein and of various other applications and embodiments of the invention in carrierv systems and hence do not desire to be limited in any way other than. by the sc'ope of said claims.

Referring` to the drawings:

Figure l is a front elevation of the preferred drop-station above referred to.

Fig. 2 is a side elevation of the same viewed from the left.

Fig. 3 is a similar elevation viewed from the right.

Fig. 4 is a top or plan view of the im proved cross-over drop station.

Fig. 5 is a partial rear elevation.

Fig. 6 is a detail section taken on line VI-VI of Fig. 5.

Fig. 7 is a detail section taken on line VII-VII of Fig. 6.

` Referring first to Fig. l, the main tracks, it will be observed, are both preferably so `disposed as to convey the carrier with its `been designated l, and of course constitutes cable passes through a suitable opening 16 the delivery track to the way stations; while the incoming track 2 to said cashier station constitutes ythe receiving track for said way stations.

s In the preerred form oi' the invention but a single endless cable 3 is provided,

4which constitutes the means for elevating carriers from' the way station or stations to the main receiving track as welll as :for propelling them along both of the main tracks;

:this cable being looped down through. the

station in a manner distinctively new to the art. l do not desire, however, to be .f limited ,in any way to the single endless cable except where in certain of the claims ,suclrconstruction is specifically reterredto,

since it is` obvious that other means may be employed for elevating or otherwisemoving thejcarrier from theclerks station to the main. track. It is regarded as preferable,

however,y to employ but` a single endless looped cable, owing to the simplicity of con- I`struction which is. rendered possible by the f the4 receiving.. track use-of this propelling device.

The cable 3 propels the carriers along the main. tracks in the direction of ythe arrows indicated adjacent thereto, and thecable of passes downwardly around the' idler or pulley 4t yto the pulley 5.at `the station proper,y and ythence up around the pulley 6 and on to the neXt way station` or to thecashiers station, as the casemay be.

.er-ably mounted upon the same spindle 7 5 The idlers or pulleys i and 6 are prefy.being provided with loops 7 adapted to space them aparty and to center them prop-s.. erly within the supporting bracket 8. The

pulley 5 is mounted lin a casing 9 which .preferably substantially completely incloses the same and thereby avoids possible injury to they person or garmcntsof the operative.

i As shown in Fig. l, this easing is rigidly mounteduponan upright l0 and has eX- tending rearwardly therefrom a bracket l1. which supports the looped portion 12 of an independent track which delivers carriers to the station from. a switch le; the latter beingadapted .in La known manner to selectively remove carriers fromthe track l which are ,destined for a given .or pres determined station.

-, The construction of the `switch l-t is welly known inthe art and hence need not be herein descr1bed. -Carriers which descend '.the independent. track are received in the said looped portion thereof and `may be removed from between: the iared extremities 15 of the track rails.

The descending lirnbA of the loop in the in the casing 9 and after passing around the respondingv opening 17.

pulley 5 emerges from said casing at a corlt may be here ynoted that the sides 18 of this .casing are preferably separable from the body thereof so that access may readily be had toy the pulley 5. i

- The delivery track or guide 19 extends yup from kthe lett hand side of the casing 9, as viewed in Fig. 1, substantially to the receiving track 2; a gap in the latter, normallyclosed by a bridge or bridge elements 20, shownin detail in Figs. G and 7, serving to permit of the passage of a carrier from the delivery track to said receiving track.

1 The bridge preferably consists of two oppositely movable elements 20, which are respectively` hinged at 2l; each element 2O being of sheet metal, the longitudinal curled edges of which are curled and cut away. as indicated in Figs. d, 5, 6 and 7.

The curled outer edgeof, each bridge element is centrally ,recessed as at 22 for the reception ofthe coil spring 23, one end of which is in engagement .with a suitable fixed point, as for eXample, a portion of theauX- iliary bracket 8 which is carried by the bracket 8, as shownin Fig. 6, and the other end 24 vof which bears `against the corre,-

spondin'g element 20 so that each of the elevof the `hinge pins 21. The tips 25 of the stops may, it desired, be made ot soft rub` ber to reduce noise. The inner edges of the plate like elements 2G are curled into yconformity with the diameter of the preferably round rods which constitute the track, and

- the `ends of these curled edges or corners of the plates are cut away below to provide for proper .engagement of the upper sides thereof with the reduced ends 27 and 27 of the track members or track rods 2 (see Fig. 7), the end 27 also beingsloped upwardly to facilitate ,the emplacement of the carrier on the receiving track. Suiiicient rclearance^28 is provided between the outer ends of thev track members 19, and the reduced ends 27 ofthe track 2v to permit of the free passage.therebetween of the kretaining lugs 29 `or like parts common to thecarriers 29 adapted for usefin systems of this character. The construction of these carriers need not be herein particularly referred to, since they are in very common use inthe art and havebeen fully described 'f in my Patent #960,617.

Obviously when the bridge is in its closed or normal position a through carrier en route along. track 2 past the station shown willtraverse the gap in engagement with the inner curled edges Aof the elements while a carrier being delivered `from the. station `to said track will-lift the bridge and jump the clearance spaces 28..

Track 19 is bent outwardly somewhat, as

at 31, to facilitate the emplacementl thereon of the carriers .being despatched; the track members being spreadito provide theusual. carrier lug receiving apertures 32, oras we may term it in conformity with the usage is a bracket 33 which carries a carrier grip Lec but `brieflv `referred to.

`opening camf34` and a grip closing cam 3b. The functions 1 :of i fthese cams have "been setforth inthe joint application above re1 ferr-ed to and they will hence behereafter i Anovethe bracket 33 is a second bracket `36 whichy carries a `cam 37,:the purpose i of which will also be hereinafterrreferred to; iwhile acdetermined distance above cam 37 is a movable glrip opening cam38, mounted on a rock ,shaft 38'., andfmovable into anch out of lits operative `positioni by means of the following mechanism: `To the leftof Fig. 1 `and right of Fig. 5 is a rod or strip 39, whichtogether with its spanning armsk 40, constitutes an actuating frame or` mem ber for saidicam `38. The arms 4() are x- .1 `edly mounted on` `a rock shaft 41,- journaled in suitable brackets, which carries a crank arm 42, which, when rotated counter-clockwise, as viewed in Fig. 3, raises and thereby lifts a bent link 43, whichi in turn elevates a crank` arm-44 onishaft `38ffand swings s the toe Ofsuch cam into its dotted line position shown in Figs. 2 and 3. `1 i l/Vhenl so disposed cam 38wis `adapted to push open `thepivoted grip element ofathe carrier-ascending `from the station which frees the carrier from the cable Awith which it `had been in engagement and `permits it upper or operative `.surface of the cam 37; whereupon the carrier grip rengages the cable `and. the carrier again travels upwardly toward `theireceiving `track 2. `As i. soon as camg38 moves out of the path of the` carrier thelatter is then free to pass upwardly on tof track 2 and pursue its journey. Cam 34 opens the grip of the car rier if it be not already open, when the carrier is inserted `at 32, and the .i cam 35 closes the grip on `the ascending limb or theicable, in a known manner, as the car` rieris lifted by thehand of the operator. j

The" frame which actua-tes cam 38 is controlled by the carriers traversing the main track 2 `past the station; bar 39 being normally heldf in the `pathof these carriers, both by gravity and by means `of a `helical i springi45 suitably connected at one end to a bracket 46.` and at the other to ya collar 47 ufion the rock shaft. The left hand eX- i "tremity of the rod 39, as viewed in Fig. l,

.is outwardly curved, as shown inFig. 4, so

that an approaching carrier may-wipe this Y rodaside and thereby swing cam 38 into its operative position, and as long as said carrier is in contact with said rod, cam 38 will prevent the delivery of any carrier being despatched from the. way sta- .tion to the main track; thus preventing colin the art, aperture `32.\f Above the; latter i lision. Excessive movement of the cam 38 and its actuating frame 1s prevented by stops 48 and 49 upon the hub of thecam cable.

carrier then carries it over the bridge and en to the section of track 2 therebeyond.

As shown in Figs. 1 and 5, a slight depression or dip 52 is provided in this section immediately beyond the extremity 27 thereof (Fig: 7), thepurpose of which is to i lower the carrier momentarily tou-*ard the cable until the open jaws of the grip stradfdle the latter.` At substantiallythe lowerrnost point of this slight drop is a grip closing cam'53, which, as the pivotedjaw of the lgrip rides therealong, closes the latter in a known manner; so that the carrier is thence propelled along the main track 2 by the Cam 51 of course only unlocks the grips of through carriers; the carriers ascending from i the station, after they have once succeeded in passing the cam 38, being thereafter not subject to the action of a grip opening' cam until they encounter the cam `51 of the next station beyond, or a corre- Cto drop back `by gravity Vuntil said grip elei i. ment encounters the downwardly .slopingn sponding cam at the central station.

In this construction as in that disclosed in the joint application above referred to, it will be noted that the through tracks 1 and 2` have the rails thereof so disposed as to Y convey carriers with their covers up or in other words,.with the carriers disposed Hatwise.

. A carrier selected for delivery at the sta- `tion is propelled up the switch rails by the cable and is thendisengaged from the latrter by the grip` opening cam 55, which pushes or wipes open the pivoted .grip jaw and frees the cable; a cord or releasing bracket 56 supported from the rails 19, aiding in freeing the cable from its engagement with the grip in a known manner.

The mode of operation of the apparatus j given by way of eXempliiication is briefly as follows: i

Assuming iirst that a carrier is en route past the station` shown; its grip being in engagement with the cable 3. Upon encountering cam 51, the grip is opened and the cable dropsdown; the portion thereof until `then engaged .by said grip passing down through the loop and the carrier proceeding along track 2 and over the closed bridge by momentum.

It then passes on along the further `section of track and dips down' untilr its grip can be rengaged by cam 53 with the cable,

after which it is propelled on toy the neXt.

way station where the successive disengagement and rengagementof the cable is again effected, and `so on until it is delivered, let us say, to the cashier. As each way station is passed the through carrier swings aside the movable cam' actuating-frame thereof,

which `promptly resumes itsposition in the,r path of succeeding carriers as soon as the passing carrier permits it to` If now a carrier be despatched from the way station shown, while cam 38 is held in its operative position by a passing carrier, so that the grip of the ycarrier being despatched encounters cam 88 before the latter moves away from the cable, the said despatched carrierwill be freed from the cable and will fall by gravity until its grip is reclosed by cam 37. The cable then re-lifts thisr .carrier and unless a through carrier shouldchance to be immediately behind the iirst the despatched carrier will have an opportunity, after this one reciprocation thereof, to emerge on to the main track through 'or past the bridge; saidy carrier swinging apart the elements 20 in so doing. The latter immediately thereafter move back to their closed or normal positions.

A carrier en route along track l and intended for the station shown, will be selec* tively removed from said track by .the switch; its grip` willbe opened by cam 55 and the cable will be removed therefrom by gravity and by the action of bracket 56;

the carrier then descending track 19 and coming to rest in the loop l2 of the latter, from whence it may be removed at 15.

Particular attention is directed to the fact that by reason of the provision of the novel loop in the cable of the carrier system in question, but a very short gap need bey pro'- vided in the main track '2 across which a carrier en route over said track past the way station need travel unattaehed to the cable. The station is furthermore very compact and its mechanism is therefore less in evidence than where the upper pulleys 4L and 6 are placed apart in substantially the same plane. c i

I particularly desire to call attention to the ease with which a carrier may be inserted at 32, by reason of the fact that the track, upon which Vsaid carrier travels up from the station, may be directly faced by the operative with no' intervening track or cable such as is present in the construction elevation, causesfthe cable passing through the stationto assume substantially the form ,of a flattened letter O instead of an elongated U, as in said joint application, and in large measure insures that .the cable will be repeatedly bent toward a determined side thereof` as it. passes around the successive pulleys; insteadof being reversely or oppositely bent after ithas been straightenedl out upon its emergence from a pulley groove.

rIhis substantial elimination of such reverse bending of the cable at the way stations, I consider, tends to prolong the life of thecable by reducing the extentfof play ofthe libers or strands thereof with respect to eachother.

In conclusion I may call attention to -the advantages which flow from the provision of the bridge adjacent the ascending limb of the cable running through the station, outside of the space inclosed by said cable, sincev this arrangement, asy previously inti- .mated, .permits .the carrier to be freely inserted upon a side of the station which faces outwardly and, further, places the bridge upon the same side of both of the revoluble elements or pulleys the tops of which are substantially at the level of the main or through track.

It also permits the axes of rotation of all of the pulleys at, or substantially-at, the station being disposed in a common vertical plane. n

Ido not desire to be limited to anyy particular disposition of thevoutwardly .facing side of the station at which the carriers may be inserted, since while in the exemplified construction the said side faces at an angle of 18()O to the line of travel taken by the carriersimmediately after being despatched from said station, or when passing the same over the bridge, the said side may obviously be made to face at any angle to said line by bending the vertical or auxiliary tracks in a known manner. I/Vhen, however, the said side is faced as shown it permits of the carriers being despached from the station so that theyL enter the through track iatwise (without additional bending of the auxiliary track), in contradistinction to edgei the rails thereof" bent to substantially the same radius,aroundsaid pulley and thereby adapted to support carriers tlatwise thereupon when said carriers are passing arounifl said pulley, and ineansfor propelling caru riers along said main and` auxiliary tracks, said auxiliary track having means to ,per-

i mit lpftlie emplacement of a carrier there# upon from an outer side of said dropg-station@` v 2i i `Gable ,carrienyapparatus comprising a way,;;a carrier to travel along said way and i, separable therefrom, said way `having means fori receiving" parts1 ofsard carrier `to` permit ofythe yemplacementwof said carrier uponY and itsuremoval from said away, a `station alongisaidfiway, pulleys at said station, and

` aniendless cable forpropelling carriers from said :station atleast tosaid way,said cable at said@` station being guided by said pulleys, said ipulleysf being, mounted uponi but 1 two axesuofyyrotation and each lportion of said cable successively passing over each of said 3. Gable `carrierapparatus comprising a, f .waypawstationalong said way, three pulleys.`

` at saidl station;I and l aV cable for propelling carriersizfrom `the station proper at least to i said way, said cable at said station being,

guidediby said pulleys, two oflsaid"` three y pulleys being mounted uponfa commonfanis of rotation `disposed adjacent said way. i

\ LMC/ablecarrierfapparatus comprising a at l said station, and a loable i for propelling twink ofpsaid `three `pulleys being mounted uponya;` common `axis ofi rotation` disposed adjacent fsaidwayiand substantially directly abone theyaxisfof the third pulley.

, ,4,5 rierslffrom a lde'spatchingipart oflsaid st`a-`- tion a't least to said way, said cable extend-` `in Gable,ioarrieryapparatus comprising a` way,fuastation, alongf said way,` ,pulleys` at said station, `andwalycable for propelling caring downwfrom theqwayparound oneof said pulleys; andubacltuto the way in` substan` tiallytlietform ofaflattenediO. i i

6; i Gable; carrier;u apparatus comprising i a way, man endless barrier-propelling cable, za f station havingpulleysftowguide said cable, the axes ofj rotation ofuall of said@ pulleys being;` in a substantiallyicommon vertical plane l c 'siwi im ii YNCable carrier apparatus, oomprislng a way, a station, flexible means to propel cars riers `from said stationyto said way` and `to propelcarriers along `said way, a portion of,`

preaching said stationalong said way," from the, part of said; lflexible means: with `whiehz it is in engagement, said moving carrier passing said station in part at least yby its momentum, means for rengaging said carrler with a part of said flexible means, and

,u a plurality of co-acting elements to guide the portion of said flexible means which runs throughsaid station,said coi-acting elements` being in different planes and being one behind the other, as viewed from the outer side of one of said elements, to permit of the `span between said ldlsengaging and ire'- N75 engaging-means being reducedwsubstantially `toalminimum;

8. Cable carrierl apparatusV comprising-af! way, `a station, flexible meansto` propel "carriersfrom said station `to said way and tofSO propel carriers along said way, a portion .ofc said Vflexible means running throughsaidc station, `'means to disengagef a carrier ap-2` preaching said station i along said*iway,-from' f thef-part-lof said flexible" means rwitlrwhich H85 it is in engagement, said moving carrier: passingsaid stationuinl part at least by its momentum, vmeans for rengaging said car-n rierlfwithwa part of said iiexible means; and`v two pulleys 4adjacent said way and a lower-90 pulleyy relatively remote therefrom, to guide i the portion of-saidl flexible means which' runs throughrsaid station, the overall distance, measured in the plane ofone of-saidltwo`c pulleys, from the point in the periphery of said `last mentioned pulley which `is most re. motefrom `the point of tangencyof the dependinglimb of the cable which is in contact i therewith, acrossto the projection `on said,k

plane., of the-corresponding point, of `the other of said two pulleys, which correspondingipoint'ismost remote from the point ofar f tangency of the other depending limb of said cable,:be'ing;fless than thewsum-:of the diameters ofl said three pulleys. 9. Cable carrier apparatus comprising ay way, astation, along said way, an endless cable .for 'propelling carriers from said Asta"-` tion tosaid way, and revoluble elements, over/which said cable passes, each disposed 1() to substantially avoid reverse bending of saidcable as its portions successively contact withlsaid elements, said cable being looped around said elements and having the points oftangenoy of each :limb ofthe loop with thewelen'ients at thezrespectiveends of said4 limb, both upon the same side of the respece i tivevaxes Vof said last mentioned elements.

10. Cable carrier apparatusxcomprising a waypa station along said way, an endless cable for propelling carriers from saidrsta# v tion.` to said way, and elements substantially at saidlstation over which .said cable passes, each .disposed'to substantially avoid 'reversew bending of said cable as its portionssucces-r. sively contactfwith said elements, said cable. being looped around said elements' and-havi' Ling the pointscftangencyxof each-llimb ,of

i the loop with theelements at the respective ends of said limb, both upon the same side of the respectiveaxes of said last mentioned elements.

11. Cable carrier 'apparatus comprising a main track, apdrop-station along said main track, flexible means for propelling carriers from a point in lsaid drop-station to said main track and thereafter along'said track from said station, said drop-station'having" revoluble elements over Which said'leXible means pass, each of saidelemen'ts beingdisposed with respect to the others to substantially avoid reverse bending'of the portions of said flexible means Which successivelyen--' `counter ysaid elements, said cable being looped around said elements and having the points of tangency 03Ev each limb of the loop track, iieXible means for elevating carriers to said track and for'prop'elling carriers' along said track, said drop-station having revolub-le elements in contactvvith portions of saidifleXible means and'driven thereby,4r

saidjeleinents being disposed 'With respect to Aeach other to substantially f avoid reverse bending of said portions asthey successively encounter 'said' elements, 'said vcable being looped around said elements and having the points of tangency' of each limbI of the loop f* With the elements -at the respective ends of said'liinb, `both upon the same side fof the ments. p

13. Cablef'carrier apparatus comprisinga main track, a drop-station along'said main track, iie'ible 'meansffor' propelling carriers along said track, said drop-station 'having revoluble' elementsl in contact With portions of said'lieXibley means and driven thereby,

each` of said elements' being disposed With respect to yeach other' to substantially avoid reverse bending of'said portionsas they su`c cessively encountersaidelements, said ca` tioned elements.

14. kCablecarrier apparatus comprising a Way, a drop-station along said Way, a cable running throughsaid `station to elevate car# riers to said Way, saidcable` being looped,

and a bridge in said Way to one side' of the i loop invthelcable, said bridge being outside ofv said loop land adjacent theascending limb'thereof. l l

15. Cable carrier apparatus comprising a said cable.'

16. Cable carrier apparatus comprising a Way,fa drop-station along said`vvay,a cable ruiming through said station to elevatecarriers tosaid Way, said cable being looped and the ascending limb of the loop beingv upon the side of the station which' faces in a direction opposite to that in which carriers travel froml said station When des patched therefrom, a movable grip openingy cam kfor releasing thel grip' of carriers being ydespatched from said station, andmeans,

controlled by carriers enV route along said Way past said station, for actuating said cam.

17. Cable carrier apparatus comprising a Way, an endless carrier-propelling cable, a

stationl'iaving pulleys to guide said cable,

the 'axes of' rotationV of all of said pulleys at said station being in'a substantially vertical 'common plane.

18.*Cable carrier apparatus coinprisinga Way, a carrier, a drop-station along said 4vWay, saidway having a vertically opening f gap therein at said station, an endless cable frunning through said station to elevate said carrier to'saidvvay,l said carrier vadapted to.

gripfsaid'cable to be elevated thereby anda "fbridgefor said gapover'vvhich carriers en respective aXesfof said last mentioned ele# route past said I station may travel, said bridge adapted to be opened to permit of' being disposed adjacei'itthe ascending limb of said cable, said limbI being to'thatfside of 19. Cable'fcarrier apparatus comprising a Way,a drop-'stationhavinga pulley adja' theV'emplacernent onsaid'way of carriers `despatched from said droplsta'tion, and

"the `station which faces in a direction oppo-l lsiter to that in Which carriers travel along' 'saidvvay'afterbeing despatched from said station;Vv

iio

meansibeingupon thel side of said station which faces in al direction opposite to that in which carriers travel When moving along f said Way after being despatched from" said station.

20. Gable carrier apparatus comprising a the station proper, means to guide lsaid car;

riers iiatvvisearound -s'aid pulley ontol said 'I Way, said means being adjacent the ascend- In testimony whereof I have affixed my ing limb oi said cable, and saidlimb being Signature, in the presence of two Witnesses.v to an outer side of the station, which side GEORGE A. AMSDEN. faces in a direction at an angle to that in Witnesses:

5 which carriers travel along said Way after FREDERICK P. IRISH, being despatched from said station. N. L. DONAHUE.

Copies of this patent may be obtained for ve cents each, by addressing che Commissioner of Patents, Washington, 2D. C. 

